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Subject[PATCH 17/18] staging: rtl8723bs: use ARRAY_SIZE
Date
Using the ARRAY_SIZE macro improves the readability of the code. Also,
it is not always useful to use a variable to store this constant
calculated at compile time.

Found with Coccinelle with the following semantic patch:
@r depends on (org || report)@
type T;
T[] E;
position p;
@@
(
(sizeof(E)@p /sizeof(*E))
|
(sizeof(E)@p /sizeof(E[...]))
|
(sizeof(E)@p /sizeof(T))
)

Signed-off-by: Jérémy Lefaure <jeremy.lefaure@lse.epita.fr>
---
drivers/staging/rtl8723bs/core/rtw_mlme_ext.c | 5 +-
drivers/staging/rtl8723bs/core/rtw_rf.c | 7 +--
drivers/staging/rtl8723bs/hal/HalHWImg8723B_BB.c | 9 ++-
drivers/staging/rtl8723bs/hal/HalHWImg8723B_MAC.c | 4 +-
drivers/staging/rtl8723bs/hal/HalHWImg8723B_RF.c | 7 +--
drivers/staging/rtl8723bs/hal/hal_com.c | 4 +-
drivers/staging/rtl8723bs/hal/hal_com_phycfg.c | 69 +++++++++++++++--------
drivers/staging/rtl8723bs/os_dep/ioctl_linux.c | 11 ++--
8 files changed, 68 insertions(+), 48 deletions(-)

diff --git a/drivers/staging/rtl8723bs/core/rtw_mlme_ext.c b/drivers/staging/rtl8723bs/core/rtw_mlme_ext.c
index 6c59fafeb769..d74159673b5e 100644
--- a/drivers/staging/rtl8723bs/core/rtw_mlme_ext.c
+++ b/drivers/staging/rtl8723bs/core/rtw_mlme_ext.c
@@ -17,6 +17,7 @@
#include <drv_types.h>
#include <rtw_debug.h>
#include <rtw_wifi_regd.h>
+#include <linux/kernel.h>


static struct mlme_handler mlme_sta_tbl[] = {
@@ -562,7 +563,7 @@ void mgt_dispatcher(struct adapter *padapter, union recv_frame *precv_frame)

index = GetFrameSubType(pframe) >> 4;

- if (index >= (sizeof(mlme_sta_tbl) / sizeof(struct mlme_handler))) {
+ if (index >= ARRAY_SIZE(mlme_sta_tbl)) {
RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("Currently we do not support reserved sub-fr-type =%d\n", index));
return;
}
@@ -2227,7 +2228,7 @@ unsigned int OnAction(struct adapter *padapter, union recv_frame *precv_frame)

category = frame_body[0];

- for (i = 0; i < sizeof(OnAction_tbl)/sizeof(struct action_handler); i++) {
+ for (i = 0; i < ARRAY_SIZE(OnAction_tbl); i++) {
ptable = &OnAction_tbl[i];

if (category == ptable->num)
diff --git a/drivers/staging/rtl8723bs/core/rtw_rf.c b/drivers/staging/rtl8723bs/core/rtw_rf.c
index b87ea4e388c0..07f5577cc073 100644
--- a/drivers/staging/rtl8723bs/core/rtw_rf.c
+++ b/drivers/staging/rtl8723bs/core/rtw_rf.c
@@ -15,6 +15,7 @@
#define _RTW_RF_C_

#include <drv_types.h>
+#include <linux/kernel.h>


struct ch_freq {
@@ -44,20 +45,18 @@ static struct ch_freq ch_freq_map[] = {
{216, 5080},/* Japan, means J16 */
};

-static int ch_freq_map_num = (sizeof(ch_freq_map) / sizeof(struct ch_freq));
-
u32 rtw_ch2freq(u32 channel)
{
u8 i;
u32 freq = 0;

- for (i = 0; i < ch_freq_map_num; i++) {
+ for (i = 0; i < ARRAY_SIZE(ch_freq_map); i++) {
if (channel == ch_freq_map[i].channel) {
freq = ch_freq_map[i].frequency;
break;
}
}
- if (i == ch_freq_map_num)
+ if (i == ARRAY_SIZE(ch_freq_map))
freq = 2412;

return freq;
diff --git a/drivers/staging/rtl8723bs/hal/HalHWImg8723B_BB.c b/drivers/staging/rtl8723bs/hal/HalHWImg8723B_BB.c
index 51d4219177d3..951585467ab1 100644
--- a/drivers/staging/rtl8723bs/hal/HalHWImg8723B_BB.c
+++ b/drivers/staging/rtl8723bs/hal/HalHWImg8723B_BB.c
@@ -13,7 +13,7 @@
*
******************************************************************************/

-
+#include <linux/kernel.h>
#include "odm_precomp.h"

static bool CheckPositive(
@@ -268,7 +268,7 @@ static u32 Array_MP_8723B_AGC_TAB[] = {
void ODM_ReadAndConfig_MP_8723B_AGC_TAB(PDM_ODM_T pDM_Odm)
{
u32 i = 0;
- u32 ArrayLen = sizeof(Array_MP_8723B_AGC_TAB)/sizeof(u32);
+ u32 ArrayLen = ARRAY_SIZE(Array_MP_8723B_AGC_TAB);
u32 *Array = Array_MP_8723B_AGC_TAB;

ODM_RT_TRACE(
@@ -537,7 +537,7 @@ static u32 Array_MP_8723B_PHY_REG[] = {
void ODM_ReadAndConfig_MP_8723B_PHY_REG(PDM_ODM_T pDM_Odm)
{
u32 i = 0;
- u32 ArrayLen = sizeof(Array_MP_8723B_PHY_REG)/sizeof(u32);
+ u32 ArrayLen = ARRAY_SIZE(Array_MP_8723B_PHY_REG);
u32 *Array = Array_MP_8723B_PHY_REG;

ODM_RT_TRACE(
@@ -617,7 +617,6 @@ static u32 Array_MP_8723B_PHY_REG_PG[] = {
void ODM_ReadAndConfig_MP_8723B_PHY_REG_PG(PDM_ODM_T pDM_Odm)
{
u32 i = 0;
- u32 ArrayLen = sizeof(Array_MP_8723B_PHY_REG_PG)/sizeof(u32);
u32 *Array = Array_MP_8723B_PHY_REG_PG;

ODM_RT_TRACE(
@@ -630,7 +629,7 @@ void ODM_ReadAndConfig_MP_8723B_PHY_REG_PG(PDM_ODM_T pDM_Odm)
pDM_Odm->PhyRegPgVersion = 1;
pDM_Odm->PhyRegPgValueType = PHY_REG_PG_EXACT_VALUE;

- for (i = 0; i < ArrayLen; i += 6) {
+ for (i = 0; i < ARRAY_SIZE(Array_MP_8723B_PHY_REG_PG); i += 6) {
u32 v1 = Array[i];
u32 v2 = Array[i+1];
u32 v3 = Array[i+2];
diff --git a/drivers/staging/rtl8723bs/hal/HalHWImg8723B_MAC.c b/drivers/staging/rtl8723bs/hal/HalHWImg8723B_MAC.c
index b868e26f20ac..7f8afa1be1ca 100644
--- a/drivers/staging/rtl8723bs/hal/HalHWImg8723B_MAC.c
+++ b/drivers/staging/rtl8723bs/hal/HalHWImg8723B_MAC.c
@@ -13,7 +13,7 @@
*
******************************************************************************/

-
+#include <linux/kernel.h>
#include "odm_precomp.h"

static bool CheckPositive(
@@ -239,7 +239,7 @@ static u32 Array_MP_8723B_MAC_REG[] = {
void ODM_ReadAndConfig_MP_8723B_MAC_REG(PDM_ODM_T pDM_Odm)
{
u32 i = 0;
- u32 ArrayLen = sizeof(Array_MP_8723B_MAC_REG)/sizeof(u32);
+ u32 ArrayLen = ARRAY_SIZE(Array_MP_8723B_MAC_REG);
u32 *Array = Array_MP_8723B_MAC_REG;

ODM_RT_TRACE(
diff --git a/drivers/staging/rtl8723bs/hal/HalHWImg8723B_RF.c b/drivers/staging/rtl8723bs/hal/HalHWImg8723B_RF.c
index 84a0be7ba697..fadfcbd91858 100644
--- a/drivers/staging/rtl8723bs/hal/HalHWImg8723B_RF.c
+++ b/drivers/staging/rtl8723bs/hal/HalHWImg8723B_RF.c
@@ -13,7 +13,7 @@
*
******************************************************************************/

-
+#include <linux/kernel.h>
#include "odm_precomp.h"

static bool CheckPositive(
@@ -270,7 +270,7 @@ static u32 Array_MP_8723B_RadioA[] = {
void ODM_ReadAndConfig_MP_8723B_RadioA(PDM_ODM_T pDM_Odm)
{
u32 i = 0;
- u32 ArrayLen = sizeof(Array_MP_8723B_RadioA)/sizeof(u32);
+ u32 ArrayLen = ARRAY_SIZE(Array_MP_8723B_RadioA);
u32 *Array = Array_MP_8723B_RadioA;

ODM_RT_TRACE(
@@ -766,7 +766,6 @@ static u8 *Array_MP_8723B_TXPWR_LMT[] = {
void ODM_ReadAndConfig_MP_8723B_TXPWR_LMT(PDM_ODM_T pDM_Odm)
{
u32 i = 0;
- u32 ArrayLen = sizeof(Array_MP_8723B_TXPWR_LMT)/sizeof(u8 *);
u8 **Array = Array_MP_8723B_TXPWR_LMT;

ODM_RT_TRACE(
@@ -776,7 +775,7 @@ void ODM_ReadAndConfig_MP_8723B_TXPWR_LMT(PDM_ODM_T pDM_Odm)
("===> ODM_ReadAndConfig_MP_8723B_TXPWR_LMT\n")
);

- for (i = 0; i < ArrayLen; i += 7) {
+ for (i = 0; i < ARRAY_SIZE(Array_MP_8723B_TXPWR_LMT); i += 7) {
u8 *regulation = Array[i];
u8 *band = Array[i+1];
u8 *bandwidth = Array[i+2];
diff --git a/drivers/staging/rtl8723bs/hal/hal_com.c b/drivers/staging/rtl8723bs/hal/hal_com.c
index 3e63b6d9c097..03554a4156d9 100644
--- a/drivers/staging/rtl8723bs/hal/hal_com.c
+++ b/drivers/staging/rtl8723bs/hal/hal_com.c
@@ -14,6 +14,7 @@
******************************************************************************/
#define _HAL_COM_C_

+#include <linux/kernel.h>
#include <drv_types.h>
#include <rtw_debug.h>
#include "hal_com_h2c.h"
@@ -1716,7 +1717,6 @@ void rtw_bb_rf_gain_offset(struct adapter *padapter)
{
u8 value = padapter->eeprompriv.EEPROMRFGainOffset;
u32 res, i = 0;
- u32 ArrayLen = sizeof(Array_kfreemap)/sizeof(u32);
u32 *Array = Array_kfreemap;
u32 v1 = 0, v2 = 0, target = 0;
/* DBG_871X("+%s value: 0x%02x+\n", __func__, value); */
@@ -1729,7 +1729,7 @@ void rtw_bb_rf_gain_offset(struct adapter *padapter)
res &= 0xfff87fff;
DBG_871X("Offset RF Gain. before reg 0x7f = 0x%08x\n", res);
/* res &= 0xfff87fff; */
- for (i = 0; i < ArrayLen; i += 2) {
+ for (i = 0; i < ARRAY_SIZE(Array_kfreemap); i += 2) {
v1 = Array[i];
v2 = Array[i+1];
if (v1 == padapter->eeprompriv.EEPROMRFGainVal) {
diff --git a/drivers/staging/rtl8723bs/hal/hal_com_phycfg.c b/drivers/staging/rtl8723bs/hal/hal_com_phycfg.c
index 566b6f0997da..e6787c22e00b 100644
--- a/drivers/staging/rtl8723bs/hal/hal_com_phycfg.c
+++ b/drivers/staging/rtl8723bs/hal/hal_com_phycfg.c
@@ -17,6 +17,7 @@
#include <drv_types.h>
#include <rtw_debug.h>
#include <hal_data.h>
+#include <linux/kernel.h>

u8 PHY_GetTxPowerByRateBase(struct adapter *Adapter, u8 Band, u8 RfPath,
u8 TxNum, enum RATE_SECTION RateSection)
@@ -860,7 +861,7 @@ struct adapter *padapter
for (txNum = RF_1TX; txNum < RF_MAX_TX_NUM; ++txNum) {
/* CCK */
base = PHY_GetTxPowerByRate(padapter, band, path, txNum, MGN_11M);
- for (i = 0; i < sizeof(cckRates); ++i) {
+ for (i = 0; i < ARRAY_SIZE(cckRates); ++i) {
value = PHY_GetTxPowerByRate(padapter, band, path, txNum, cckRates[i]);
PHY_SetTxPowerByRate(padapter, band, path, txNum, cckRates[i], value - base);
}
@@ -939,58 +940,78 @@ void PHY_SetTxPowerIndexByRateSection(
if (RateSection == CCK) {
u8 cckRates[] = {MGN_1M, MGN_2M, MGN_5_5M, MGN_11M};
if (pHalData->CurrentBandType == BAND_ON_2_4G)
- PHY_SetTxPowerIndexByRateArray(padapter, RFPath, pHalData->CurrentChannelBW, Channel,
- cckRates, sizeof(cckRates)/sizeof(u8));
+ PHY_SetTxPowerIndexByRateArray(padapter, RFPath,
+ pHalData->CurrentChannelBW,
+ Channel, cckRates,
+ ARRAY_SIZE(cckRates));

} else if (RateSection == OFDM) {
u8 ofdmRates[] = {MGN_6M, MGN_9M, MGN_12M, MGN_18M, MGN_24M, MGN_36M, MGN_48M, MGN_54M};
- PHY_SetTxPowerIndexByRateArray(padapter, RFPath, pHalData->CurrentChannelBW, Channel,
- ofdmRates, sizeof(ofdmRates)/sizeof(u8));
+ PHY_SetTxPowerIndexByRateArray(padapter, RFPath,
+ pHalData->CurrentChannelBW,
+ Channel, ofdmRates,
+ ARRAY_SIZE(ofdmRates));

} else if (RateSection == HT_MCS0_MCS7) {
u8 htRates1T[] = {MGN_MCS0, MGN_MCS1, MGN_MCS2, MGN_MCS3, MGN_MCS4, MGN_MCS5, MGN_MCS6, MGN_MCS7};
- PHY_SetTxPowerIndexByRateArray(padapter, RFPath, pHalData->CurrentChannelBW, Channel,
- htRates1T, sizeof(htRates1T)/sizeof(u8));
+ PHY_SetTxPowerIndexByRateArray(padapter, RFPath,
+ pHalData->CurrentChannelBW,
+ Channel, htRates1T,
+ ARRAY_SIZE(htRates1T));

} else if (RateSection == HT_MCS8_MCS15) {
u8 htRates2T[] = {MGN_MCS8, MGN_MCS9, MGN_MCS10, MGN_MCS11, MGN_MCS12, MGN_MCS13, MGN_MCS14, MGN_MCS15};
- PHY_SetTxPowerIndexByRateArray(padapter, RFPath, pHalData->CurrentChannelBW, Channel,
- htRates2T, sizeof(htRates2T)/sizeof(u8));
+ PHY_SetTxPowerIndexByRateArray(padapter, RFPath,
+ pHalData->CurrentChannelBW,
+ Channel, htRates2T,
+ ARRAY_SIZE(htRates2T));

} else if (RateSection == HT_MCS16_MCS23) {
u8 htRates3T[] = {MGN_MCS16, MGN_MCS17, MGN_MCS18, MGN_MCS19, MGN_MCS20, MGN_MCS21, MGN_MCS22, MGN_MCS23};
- PHY_SetTxPowerIndexByRateArray(padapter, RFPath, pHalData->CurrentChannelBW, Channel,
- htRates3T, sizeof(htRates3T)/sizeof(u8));
+ PHY_SetTxPowerIndexByRateArray(padapter, RFPath,
+ pHalData->CurrentChannelBW,
+ Channel, htRates3T,
+ ARRAY_SIZE(htRates3T));

} else if (RateSection == HT_MCS24_MCS31) {
u8 htRates4T[] = {MGN_MCS24, MGN_MCS25, MGN_MCS26, MGN_MCS27, MGN_MCS28, MGN_MCS29, MGN_MCS30, MGN_MCS31};
- PHY_SetTxPowerIndexByRateArray(padapter, RFPath, pHalData->CurrentChannelBW, Channel,
- htRates4T, sizeof(htRates4T)/sizeof(u8));
+ PHY_SetTxPowerIndexByRateArray(padapter, RFPath,
+ pHalData->CurrentChannelBW,
+ Channel, htRates4T,
+ ARRAY_SIZE(htRates4T));

} else if (RateSection == VHT_1SSMCS0_1SSMCS9) {
u8 vhtRates1T[] = {MGN_VHT1SS_MCS0, MGN_VHT1SS_MCS1, MGN_VHT1SS_MCS2, MGN_VHT1SS_MCS3, MGN_VHT1SS_MCS4,
MGN_VHT1SS_MCS5, MGN_VHT1SS_MCS6, MGN_VHT1SS_MCS7, MGN_VHT1SS_MCS8, MGN_VHT1SS_MCS9};
- PHY_SetTxPowerIndexByRateArray(padapter, RFPath, pHalData->CurrentChannelBW, Channel,
- vhtRates1T, sizeof(vhtRates1T)/sizeof(u8));
+ PHY_SetTxPowerIndexByRateArray(padapter, RFPath,
+ pHalData->CurrentChannelBW,
+ Channel, vhtRates1T,
+ ARRAY_SIZE(vhtRates1T));

} else if (RateSection == VHT_2SSMCS0_2SSMCS9) {
u8 vhtRates2T[] = {MGN_VHT2SS_MCS0, MGN_VHT2SS_MCS1, MGN_VHT2SS_MCS2, MGN_VHT2SS_MCS3, MGN_VHT2SS_MCS4,
MGN_VHT2SS_MCS5, MGN_VHT2SS_MCS6, MGN_VHT2SS_MCS7, MGN_VHT2SS_MCS8, MGN_VHT2SS_MCS9};

- PHY_SetTxPowerIndexByRateArray(padapter, RFPath, pHalData->CurrentChannelBW, Channel,
- vhtRates2T, sizeof(vhtRates2T)/sizeof(u8));
+ PHY_SetTxPowerIndexByRateArray(padapter, RFPath,
+ pHalData->CurrentChannelBW,
+ Channel, vhtRates2T,
+ ARRAY_SIZE(vhtRates2T));
} else if (RateSection == VHT_3SSMCS0_3SSMCS9) {
u8 vhtRates3T[] = {MGN_VHT3SS_MCS0, MGN_VHT3SS_MCS1, MGN_VHT3SS_MCS2, MGN_VHT3SS_MCS3, MGN_VHT3SS_MCS4,
MGN_VHT3SS_MCS5, MGN_VHT3SS_MCS6, MGN_VHT3SS_MCS7, MGN_VHT3SS_MCS8, MGN_VHT3SS_MCS9};

- PHY_SetTxPowerIndexByRateArray(padapter, RFPath, pHalData->CurrentChannelBW, Channel,
- vhtRates3T, sizeof(vhtRates3T)/sizeof(u8));
+ PHY_SetTxPowerIndexByRateArray(padapter, RFPath,
+ pHalData->CurrentChannelBW,
+ Channel, vhtRates3T,
+ ARRAY_SIZE(vhtRates3T));
} else if (RateSection == VHT_4SSMCS0_4SSMCS9) {
u8 vhtRates4T[] = {MGN_VHT4SS_MCS0, MGN_VHT4SS_MCS1, MGN_VHT4SS_MCS2, MGN_VHT4SS_MCS3, MGN_VHT4SS_MCS4,
MGN_VHT4SS_MCS5, MGN_VHT4SS_MCS6, MGN_VHT4SS_MCS7, MGN_VHT4SS_MCS8, MGN_VHT4SS_MCS9};

- PHY_SetTxPowerIndexByRateArray(padapter, RFPath, pHalData->CurrentChannelBW, Channel,
- vhtRates4T, sizeof(vhtRates4T)/sizeof(u8));
+ PHY_SetTxPowerIndexByRateArray(padapter, RFPath,
+ pHalData->CurrentChannelBW,
+ Channel, vhtRates4T,
+ ARRAY_SIZE(vhtRates4T));
} else
DBG_871X("Invalid RateSection %d in %s", RateSection, __func__);
}
@@ -1012,7 +1033,7 @@ static bool phy_GetChnlIndex(u8 Channel, u8 *ChannelIdx)
} else {
bIn24G = false;

- for (i = 0; i < sizeof(channel5G)/sizeof(u8); ++i) {
+ for (i = 0; i < ARRAY_SIZE(channel5G); ++i) {
if (channel5G[i] == Channel) {
*ChannelIdx = i;
return bIn24G;
@@ -1149,7 +1170,7 @@ u8 PHY_GetTxPowerIndexBase(
} else if (BandWidth == CHANNEL_WIDTH_80) { /* BW80-1S, BW80-2S */
/* <20121220, Kordan> Get the index of array "Index5G_BW80_Base". */
u8 channel5G_80M[CHANNEL_MAX_NUMBER_5G_80M] = {42, 58, 106, 122, 138, 155, 171};
- for (i = 0; i < sizeof(channel5G_80M)/sizeof(u8); ++i)
+ for (i = 0; i < ARRAY_SIZE(channel5G_80M); ++i)
if (channel5G_80M[i] == Channel)
chnlIdx = i;

@@ -1588,7 +1609,7 @@ static s8 phy_GetChannelIndexOfTxPowerLimit(u8 Band, u8 Channel)
if (Band == BAND_ON_2_4G)
channelIndex = Channel - 1;
else if (Band == BAND_ON_5G) {
- for (i = 0; i < sizeof(channel5G)/sizeof(u8); ++i) {
+ for (i = 0; i < ARRAY_SIZE(channel5G); ++i) {
if (channel5G[i] == Channel)
channelIndex = i;
}
diff --git a/drivers/staging/rtl8723bs/os_dep/ioctl_linux.c b/drivers/staging/rtl8723bs/os_dep/ioctl_linux.c
index 6a8f805c0b28..3fca0c2d4c8d 100644
--- a/drivers/staging/rtl8723bs/os_dep/ioctl_linux.c
+++ b/drivers/staging/rtl8723bs/os_dep/ioctl_linux.c
@@ -18,6 +18,7 @@
#include <rtw_debug.h>
#include <rtw_mp.h>
#include <linux/jiffies.h>
+#include <linux/kernel.h>

#define RTL_IOCTL_WPA_SUPPLICANT (SIOCIWFIRSTPRIV+30)

@@ -5017,12 +5018,12 @@ static struct iw_statistics *rtw_get_wireless_stats(struct net_device *dev)

struct iw_handler_def rtw_handlers_def = {
.standard = rtw_handlers,
- .num_standard = sizeof(rtw_handlers) / sizeof(iw_handler),
+ .num_standard = ARRAY_SIZE(rtw_handlers),
#if defined(CONFIG_WEXT_PRIV)
.private = rtw_private_handler,
.private_args = (struct iw_priv_args *)rtw_private_args,
- .num_private = sizeof(rtw_private_handler) / sizeof(iw_handler),
- .num_private_args = sizeof(rtw_private_args) / sizeof(struct iw_priv_args),
+ .num_private = ARRAY_SIZE(rtw_private_handler),
+ .num_private_args = ARRAY_SIZE(rtw_private_args),
#endif
.get_wireless_stats = rtw_get_wireless_stats,
};
@@ -5109,8 +5110,8 @@ static int rtw_ioctl_wext_private(struct net_device *dev, union iwreq_data *wrq_

priv = rtw_private_handler;
priv_args = rtw_private_args;
- num_priv = sizeof(rtw_private_handler) / sizeof(iw_handler);
- num_priv_args = sizeof(rtw_private_args) / sizeof(struct iw_priv_args);
+ num_priv = ARRAY_SIZE(rtw_private_handler);
+ num_priv_args = ARRAY_SIZE(rtw_private_args);

if (num_priv_args == 0) {
err = -EOPNOTSUPP;
--
2.14.1
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